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Forum: FLUENT

August 18, 2012, 08:29

Replies: 7

Roughness Height and Meshing Form?

Views: 2,290

Posted By morecfd

so I must calculate both the Y+ value and...

so I must calculate both the Y+ value and Roughness Height, and choose between these two, actually the one with a smaller value

"The boundary layer length is the length"
there is a bend in the...

Forum: FLUENT

August 18, 2012, 03:01

Replies: 7

Roughness Height and Meshing Form?

Views: 2,290

Posted By morecfd

so in that Y+, the height of the cells in...

so in that Y+, the height of the cells in adjacent to the wall?

Here I have a Manning's coefficient and so a Roughness Height
but in this page (http://www.cfd-online.com/Tools/yplus.php) there is...

Forum: FLUENT

August 17, 2012, 17:06

Replies: 7

Roughness Height and Meshing Form?

Views: 2,290

Posted By morecfd

Roughness Height and Meshing Form?

I have already simulated an open channel flow with the Roughness Height=0, the results are validated
Now I would like to model the the same flow, with a Roughness Height=7mm

do I need to change...

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